how to assign a batch of variables

[huangwason]

I am trying to assign such as a1=1, a2=2, ... , a8=8, and I wrote a script such like

for (( b=1; b <= 8 ; b++ ))
do
a$b=$b
echo $(a$b)
done

the output as
./for-loop.sh: line 6: A1=1: command not found
./for-loop.sh: line 7: a1: command not found

what is the problem?

 

[feherke]

Hi

Maybe this ?

for (( b=1; b <= 8 ; b++ )); do
  eval a$b=$b
  eval echo "\$a$b"
done

Feherke.

http://rootshell.be/~feherke/

 

[MoreFeo]

Can you deal with an array a[$b], instead of several a1, a2, etc... variables?

 

[huangwason]

thanks